Hydrogen

A key part of a clean and secure energy future

Hydrogen can help tackle various critical energy challenges, including helping to store the variable output from renewables like solar and wind to better match demand. It offers ways to decarbonise a range of sectors – including long-haul transport, chemicals, and iron and steel – where it is proving difficult to meaningfully reduce emissions. It can also help improve air quality and strengthen energy security.


Datasets and assumptions


The assumptions annex collects the various assumptions that underpin the IEA's analysis on hydrogen. For technologies, global averages are presented. However, several analyses in the Future of Hydrogen present regional examples, for which costs will vary with material and labour inputs and differ from the global average. These input parameters reflect choices made by the IEA in light of the limited space to present multiple sensitivity analyses.

The project dataset covers all projects worldwide that have been commissioned since 2000 for the production of hydrogen for energy or climate change mitigation purposes, i.e. their objective is either to reduce the emissions associated with the production of hydrogen for existing applications, or the introduction of hydrogen as an energy carrier or industrial feedstock in new applications where it is not currently widely used. and has the potential to be a low-carbon technology option. Projects in planning or construction are also included.

The purpose of the policies dataset is to provide government and other stakeholders with an overview of existing policies and government activities around the world in support of hydrogen. It has been compiled by the IEA with the invaluable support of IEA Hydrogen Technology Collaboration Programme and the International Partnership for Hydrogen and Fuel Cells in the Economy. It has been undertaken to support IEA work for the G20 in 2019, but it is hoped that the collaborating organisations will be able to host it as an ongoing resource.

Hydrogen vehicle cost calculator


Cost is one of the criteria car buyers use for purchase decisions along with performance, comfort, perceived reliability and brand among others. At the same time, different regions will have different fuel prices, upstream emissions and vehicle use combined with the uncertainty of future technology developments.

This calculator allows drawing some insights into the effect the different parameters can have on total cost of ownership and how zero emission vehicles (electric and hydrogen cars) compare with each other as well as with the incumbent technology, the internal combustion engine. It should be used keeping in mind that different consumers will weigh the considerations differently, according to their individual priorities and preferences.